Miniaturized probe for femtosecond laser microsurgery and two-photon imaging.

نویسندگان

  • Christopher L Hoy
  • Nicholas J Durr
  • Pengyuan Chen
  • Wibool Piyawattanametha
  • Hyejun Ra
  • Olav Solgaard
  • Adela Ben-Yakar
چکیده

Combined two-photon fluorescence microscopy and femtosecond laser microsurgery has many potential biomedical applications as a powerful "seek-and-treat" tool. Towards developing such a tool, we demonstrate a miniaturized probe which combines these techniques in a compact housing. The device is 10 x 15 x 40 mm(3) in size and uses an aircore photonic crystal fiber to deliver femtosecond laser pulses at 80 MHz repetition rate for imaging and 1 kHz for microsurgery. A fast two-axis microelectromechanical system scanning mirror is driven at resonance to produce Lissajous beam scanning at 10 frames per second. Field of view is 310 microm in diameter and the lateral and axial resolutions are 1.64 microm and 16.4 microm, respectively. Combined imaging and microsurgery is demonstrated using live cancer cells.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Two-photon Luminescence Imaging of Cancer Cells Using Gold Nanorods in a Miniaturized Probe

Two-photon imaging is potentially a powerful technique for the early diagnosis of epithelial cancer because it permits non-invasive imaging at the micron scale hundreds of microns deep into scattering tissue. Though it is possible to discriminate cancerous and healthy tissue based on two-photon imaging from endogenous fluorophores, two-photon contrast agents have the ability to increase signal-...

متن کامل

Optical design and imaging performance testing of a 9.6-mm diameter femtosecond laser microsurgery probe.

We present the optical design of a 9.6-mm diameter fiber-coupled probe for combined femtosecond laser microsurgery and nonlinear optical imaging. Towards enabling clinical use, we successfully reduced the dimensions of our earlier 18-mm microsurgery probe by half, while improving optical performance. We use analytical and computational models to optimize the miniaturized lens system for off-axi...

متن کامل

A 0.4-mm-diameter probe for nonlinear optical imaging.

A miniaturized probe that possesses a diameter of 0.4 mm is developed for two-photon-excited fluorescence imaging. The miniaturized probe was manufactured by the collapse of air holes and the formation of a lens on the tip of a double-clad photonic crystal fiber (DCPCF) using electric arc discharging from a conventional fusion splicer. As a result, a femtosecond pulsed laser beam delivered by t...

متن کامل

Sub-cellular precision on-chip small-animal immobilization, multi-photon imaging and femtosecond-laser manipulation.

Techniques for stable, rapid and repeatable small-animal immobilization are necessary for high-throughput in vivo genetic/drug screens using cellular and sub-cellular features in multi-cellular organisms. We demonstrate a method for non-invasive and high-throughput on-chip immobilization of physiologically active C. elegans without the use of anesthesia or cooling, but with comparable stability...

متن کامل

Simultaneous mechanical-scan-free confocal microscopy and laser microsurgery.

We demonstrate an endoscope-compatible single-fiber-based device that performs simultaneous confocal microscopy and high-precision laser microsurgery. The method is based on mapping of two-dimensional sample coordinates onto the optical spectrum and allows us to perform two-dimensional imaging and microsurgery without any mechanical movement of the probe or the sample. The technology holds prom...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Optics express

دوره 16 13  شماره 

صفحات  -

تاریخ انتشار 2008